Borderou de evaluare (job #134991)

Compilare: user.cpp: In function ‘int main()’: user.cpp:6:42: warning: unused variable ‘cate’ [-Wunused-variable] user.cpp:6:48: warning: unused variable ‘cate1’ [-Wunused-variable] user.cpp:6:86: warning: unused variable ‘x1’ [-Wunused-variable] user.cpp:7:10: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:4:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:5:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:16:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:67:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:129:13: warning: ‘z’ may be used uninitialized in this function [-Wuninitialized] user.cpp:129:13: warning: ‘w’ may be used uninitialized in this function [-Wuninitialized]